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The spring equinox, the official start of the spring season in the northern hemisphere, this year falls on March 20. (Tanjug/Jaroslav Pap) At the same time, fall is beginning in Earth's southern hemisphere...The spring equinox will happen at 16:57 UT
44 p.m., the first day of fall began. We all know what that means: pumpkin lattes, the crunch of leaves beneath your boots and brisk weather. But there's more to fall than apple picking -- the new season marks a shift in the Earth's axis.
Sunday, marking the start of fall in the Northern Hemisphere and spring in the Southern Hemisphere. At the equinox, the Earth is spinning upright relative to the sun -- this only happens twice a year because the Earth's axis is tilted by 23.5 degrees.
Jupiter's moon Europa and found proof that it most likely spun around a tilted axis at some point. This tilt can influence calculations of how much of Europa's history is recorded in its frozen shell, how much heat is generated by tides in its ocean,
Early in its life the moon was much closer to Earth and the tides were a lot bigger and more frequent...Of course, the question of the origin of life on Earth has long puzzled scientists...This theory, panspermia, is attractive, since it removes the
Image coverage, and mapping of shadows, is incomplete near the pole. Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington/National Astronomy and Ionosphere Center, Arecibo Observatory) Whenever I'm telling students
Did anyone else notice a change in the air around, say, 8:49 a.m. on Sept. 22?...Maybe the sun's angle suddenly seemed lower than it had all summer? For those of you with incredibly sharp senses, that moment was the beginning of autumn in the Rockies.
After Saturday, nights in the Philippines will start to grow longer as the Sun approaches the celestial equator, state astronomers said. "Philippine nights will be longer as the Sun approaches the celestial equator...Science site EarthSky.org said
Researchers from the Niels Bohr Institute have linked ice and dust accumulation on Mars's north pole to variations in solar insolation, thus establishing the first dated climate history for the Red planet.
Written by Filed Under The Solstice Ancient people discovered the sun seemed to travel southward for roughly six months of the year and appeared to halt over the Tropic of Cancer on what is now the Summer Solstice. Following its stillness, the sun